Hello @kommokm, and welcome to the forum!
Usually it is much more helpful to name the original brush, when possible the software it was used with, and to provide the information Iām asking for in this ā post.
Marc Brunet made lots of brushes, and your picture is so unspecific, because it provides no measure to compare it with, so it is hard to say to what we should compare your information.
But as a hint, in our category for brushes and bundles, you will find this bundle with recreated brushes of MB:
MB Starter Pack 2021v4 Recreation for Krita * RE-UPDATED! with Michelist quote in og post*
Michelist